Unveiling the impact of synergy between digitalization and greening on urban employment in China.

Digitalization and greening are two major characteristics of economic and social development, and promoting the deep synergy of these two factors has significant practical relevance for employment. However, the question of whether synergy between digitalization and greening promotes or hinders employment has not been answered in the literature. Therefore, a synergistic framework was first constructed for urban greening and digitalization based on green pulling and the digital empowerment mechanism.

Ferric- and calcium-loaded red soil assist colonization of submerged macrophyte for the in-situ remediation of eutrophic shallow lake: From mesocosm experiment to field enclosure application.

Eutrophication and its resulting harmful algal blooms greatly reduce the ecosystem services of natural waters. The use of modified clay materials to assist the phytoremediation of eutrophic water is a promising technique. In this study, ferric chloride and calcium hydroxide were respectively loaded on red soil for algal flocculation and phosphorus inactivation.

Spatiotemporal evolution and multi-scale coupling effects of land-use carbon emissions and ecological environmental quality.

The coupling relationship between land-use carbon emissions (LCE) and ecological environmental quality (EEQ) is critical for regional sustainable development. Rapid urbanization promotes a notable increase in LCE, which imparts significant stress on EEQ. This study used land use and cover change (LUCC) and Open-Data Inventory for Anthropogenic Carbon dioxide (ODIAC) data from the urban agglomeration in the middle reaches of the Yangtze River (UAMRYR) to evaluate LCE, applied a remote sensing ecological index (RSEI) model to calculate EEQ, and combined gravity and centroid movement trajectory models to analyze the spatiotemporal evolution characteristics of LCE and EEQ.

Spatiotemporal change in ecological quality and its influencing factors in the Dongjiangyuan region, China.

It is of great significance for regional ecological protection and sustainable development to quickly and effectively assess and monitor regional ecological quality and identify the factors that affect ecological quality. This paper constructs the Remote Sensing Ecological Index (RSEI) based on the Google Earth Engine (GEE) platform to analyze the spatial and temporal evolution of ecological quality in the Dongjiangyuan region from 2000 to 2020. An ecological quality trend analysis was conducted through the Theil-Sen median and Mann-Kendall tests, and the influencing factors were analyzed by using a geographically weighted regression (GWR) model.

High N Storage but Low N Recovery After Long-Term N-Fertilization in a Subtropical Plantation Ecosystem: A 14-Year Case Study.

Forests are among the most important N pools of all terrestrial ecosystems. Elevated atmospheric N deposition in recent decades has led to increased interest in the influences of N application on forest N cycles. However, accurate assessments of N storage in forest ecosystems remain elusive.

Effects of organic selenium on absorption and bioaccessibility of arsenic in radish under arsenic stress.

Arsenic (As) exposure poses a serious threat to human health. The present study investigated the effects of organic Se on As accumulation, migration, and As bioaccessibility in As-stressed radish. The results showed that organic Se can effectively block the accumulation of As in radish, reduce As bioaccessibility, and promote the conversion of As from inorganic to organic form.

Effects of selenium on antioxidant enzyme activity and bioaccessibility of arsenic in arsenic-stressed radish.

Consuming arsenic (As)-contaminated vegetables is the main route of As exposure in humans. The present study focused on the alterations in antioxidant enzymatic activities and As bioaccessibility in As-contaminated radish subjected to Se. Compared to the CK group, the total As content in raw radish was reduced by 27.

Effects of exogenous 3-indoleacetic acid and cadmium stress on the physiological and biochemical characteristics of Cinnamomum camphora.

Indoleacetic acid (IAA) is a plant growth regulator that plays an important role in plant growth and development, and participates in the regulation of abiotic stress. To explore the effect of IAA on cadmium toxicity in Cinnamomum camphora, an indoor potted experiment was conducted with one-year-old C. camphora seedlings.

Assessing bioaccessibility of Se and I in dual biofortified radish seedlings using simulated in vitro digestion.

Selenium (Se) and iodine (I) are essential elements for humans, and biofortification of vegetables with these elements is an effective way to amend their deficiencies in the diet. In this study, the distribution and transformation of Se and I species were investigated in radish seedlings that were simultaneously supplemented with these two elements; the fate and the bioaccessibility of Se and I species were dynamically surveyed in the oral, gastric and intestinal phases using a simulated in vitro digestion method. The radish seedlings were cultivated in hydroponic conditions with Se (IV), Se (VI), I and IO (each 1 mg L).

Estimation of arsenic bioaccessibility in raw and cooked radish using simulated in vitro digestion.

Consumption of arsenic (As)-contaminated vegetables is a major As exposure pathway for humans. However, little is known about plant As uptake characteristics and the bioaccessibility of As after ingestion of As-contaminated radish. The present study investigated As concentrations and species in As-contaminated radish and assessed the effects of steamed, griddled and boiled cooking on the bioaccessibility of As in radish using in vitro digestion.

Effects of bacterial-feeding nematodes on soil microbial activity and the microbial community in oil-contaminated soil.

Rapid economic development has caused an increase in serious pollution problems due to the ever-increasing use of oil and its products, thus making oil pollution control an urgent task. Studies have shown that large amounts of bacterial-feeding nematodes are present in oil-contaminated soil; their function is as yet unclear. In this experiment, different densities of Caenorhabditis elegans (C.

Effects of bacterial-feeding nematodes and organic matter on microbial activity and oil degradation in contaminated soil.

Increasing rates of oil exploitation and utilization are associated with increasing rates of oil pollution in soil. Nematodes are abundant in soils with or without oil contamination, among which bacterial-feeding nematodes are the dominant group. However, their function in oil-contaminated soil is unclear.

Submerged Macrophytes Exhibit Different Phosphorus Stoichiometric Homeostasis.

Phosphorus (P) is a limiting element in many aquatic ecosystems. Excessive P input often leads to cyanobacterial bloom, thus triggering ecological imbalances and a series of environmental problems. Submerged macrophytes have a strong ability to absorb P and play important roles in maintaining aquatic ecosystem functions.

Vegetation cover-another dominant factor in determining global water resources in forested regions.

Forested catchments provide critically important water resources. Due to dramatic global forest change over the past decades, the importance of including forest or vegetation change in the assessment of water resources under climate change has been highly recognized by Intergovernmental Panel on Climate Change (IPCC); however, this importance has not yet been examined quantitatively across the globe. Here, we used four remote sensing-based indices to represent changes in vegetation cover in forest-dominated regions, and then applied them to widely used models: the Fuh model and the Choudhury-Yang model to assess relative contributions of vegetation and climate change to annual runoff variations from 2000 to 2011 in forested landscape (forest coverage >30%) across the globe.

Individual size but not additional nitrogen regulates tree carbon sequestration in a subtropical forest.

Recent studies have indicated that tree carbon accumulation in subtropical forests has been negatively affected by global change phenomena such as warming and drought. However, the long-term effect of nitrogen addition on plant carbon storage remains poorly understood in these regions. In this study, we conducted a 10-year field experiment examining the effect of experimental N addition on plant growth and carbon storage in a subtropical Chinese fir forest.

Estimations of evapotranspiration in an age sequence of Eucalyptus plantations in subtropical China.

Eucalyptus species are widely planted for reforestation in subtropical China. However, the effects of Eucalyptus plantations on the regional water use remain poorly understood. In an age sequence of 2-, 4- and 6-year-old Eucalyptus plantations, the tree water use and soil evaporation were examined by linking model estimations and field observations.

Individual and interactive effects of drought and heat on leaf physiology of seedlings in an economically important crop.

Heat waves in combination with drought are predicted to occur more frequently with climate warming, yet their interactive effects on crop carbon and water balance are still poorly understood. Hence, research on the capacity of crops to withstand and recover from the combined stress is urgently needed. This study investigated the effects of drought and heat wave on a crop species as well as the recovery from the combined stress.

Should Exotic Eucalyptus be Planted in Subtropical China: Insights from Understory Plant Diversity in Two Contrasting Eucalyptus Chronosequences.

Although Eucalyptus is widely planted in South China, whose effects on native biodiversity are unclear. The objective of this study was to quantify the richness and composition of understory plants in two contrasting Eucalyptus chronosequences in South China. One was in Zhangzhou City with plantation age of 2, 4, and 6 years after clear-cutting Chinese fir forests, while the other was in Heshan City with plantation age of 2, 3, and 24 years that reforested on barren lands.

Corticotropin-releasing factor mediates bone cancer induced pain through neuronal activation in rat spinal cord.

Corticotropin-releasing factor (CRF) serves as a neuromodulator in the hypothalamic-pituitary-adrenal axis, playing an essential role in depression, anxiety, and pain regulation. However, its biological role in bone cancer induced pain has not been investigated. In the present study, we aimed to elucidate the expression and distribution of CRF in spinal cord using a rodent model of bone cancer pain.

Asynchronous responses of soil microbial community and understory plant community to simulated nitrogen deposition in a subtropical forest.

Atmospheric nitrogen (N) deposition greatly affects ecosystem processes and properties. However, few studies have simultaneously examined the responses of both the above- and belowground communities to N deposition. Here, we investigated the effects of 8 years of simulated N deposition on soil microbial communities and plant diversity in a subtropical forest.

[Ecophysiological mechanism underlying the impacts of nitrogen saturation in terrestrial ecosystems on plants].

Human activities such as combustion of fossil fuels, production and application of nitrogen fertilizer, and intensive agriculture and stockbreeding, have significantly elevated the reactive nitrogen concentration in the atmosphere, leading to nitrogen accumulation, and even nitrogen saturation in some terrestrial ecosystems. The status of global nitrogen deposition and the concept of nitrogen saturation are reviewed, and the research progress concerning ecophysiological response of the plants to nitrogen saturation, including photosynthesis, nutrient absorption and stress resistance, are described and discussed in details.